html,body,#root{width:100%;height:100%;margin:0;padding:0;background:transparent}html,body{margin:0;padding:0;background:transparent}.chat-float-btn{position:fixed;bottom:24px;right:24px;border-radius:50%;width:60px;height:60px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;cursor:pointer;box-shadow:0 4px 20px #667eea66;transition:all .3s cubic-bezier(.4,0,.2,1);z-index:1000;padding:0;overflow:hidden}.chat-float-btn:hover{transform:scale(1.05);box-shadow:0 8px 25px #667eea99}.chat-float-btn:active{transform:scale(.95)}.chat-btn-content{position:relative;width:100%;height:100%;display:flex;align-items:center;justify-content:center}.chat-icon{width:28px;height:28px;transition:transform .3s ease}.chat-float-btn:hover .chat-icon{transform:scale(1.1)}.chat-pulse{position:absolute;width:100%;height:100%;border-radius:50%;background:linear-gradient(135deg,#fff3,#fff0);animation:pulse 2s infinite}@keyframes pulse{0%{transform:scale(1);opacity:.8}to{transform:scale(1.5);opacity:0}}.chat-window{position:relative;width:100%;height:100%;background:#fff;border-radius:16px;display:flex;flex-direction:column;overflow:hidden;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.chat-header{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:20px 24px;display:flex;justify-content:space-between;align-items:center}.chat-header-content{display:flex;align-items:center;gap:12px}.chat-header-icon{width:36px;height:36px;background:#fff3;border-radius:10px;display:flex;align-items:center;justify-content:center}.chat-header-icon svg{width:20px;height:20px}.chat-header-text{display:flex;flex-direction:column}.chat-title{margin:0;font-size:16px;font-weight:600;line-height:1.2}.chat-subtitle{margin:2px 0 0;font-size:12px;opacity:.9;font-weight:400}@keyframes status-pulse{0%,to{opacity:1}50%{opacity:.5}}.chat-messages-container{flex:1;overflow-y:auto;background:#f8fafc;padding:20px}.chat-messages{height:100%;display:flex;flex-direction:column;gap:16px}.empty-state{text-align:center;padding:40px 20px;color:#64748b}.empty-state-icon{width:64px;height:64px;margin:0 auto 16px;background:#e2e8f0;border-radius:50%;display:flex;align-items:center;justify-content:center}.empty-state-icon svg{width:32px;height:32px;color:#94a3b8}.empty-state h4{margin:0 0 8px;font-size:18px;font-weight:600;color:#334155}.empty-state p{margin:0;font-size:14px;line-height:1.4}.chat-message{display:flex;gap:12px;max-width:85%;animation:messageAppear .3s ease-out}@keyframes messageAppear{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.user-message{margin-left:auto;flex-direction:row-reverse}.bot-message{margin-right:auto}.message-avatar{flex-shrink:0;width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:14px}.user-avatar{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;width:100%;height:100%;border-radius:8px;display:flex;align-items:center;justify-content:center}.bot-avatar{background:linear-gradient(135deg,#10b981,#059669);color:#fff;width:100%;height:100%;border-radius:8px;display:flex;align-items:center;justify-content:center}.bot-avatar svg{width:18px;height:18px}.message-content{display:flex;flex-direction:column}.message-text{padding:12px 16px;border-radius:12px;font-size:14px;line-height:1.5;word-wrap:break-word}.user-message .message-text{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border-bottom-right-radius:4px}.bot-message .message-text{background:#fff;color:#334155;border:1px solid #e2e8f0;border-bottom-left-radius:4px;box-shadow:0 2px 4px #0000000d}.message-time{font-size:11px;color:#94a3b8;margin-top:4px;padding:0 8px;font-weight:500}.user-message .message-time{text-align:right}.chat-input-area{padding:16px 20px;background:#fff;border-top:1px solid #e2e8f0}.input-wrapper{display:flex;gap:8px;align-items:center}.input-wrapper input{flex:1;padding:12px 16px;border:2px solid #e2e8f0;border-radius:12px;font-size:14px;transition:all .2s;background:#f8fafc;outline:none}.input-wrapper input:focus{border-color:#667eea;background:#fff;box-shadow:0 0 0 3px #667eea1a}.input-wrapper input::placeholder{color:#94a3b8}.input-wrapper input:disabled{opacity:.6;cursor:not-allowed}.send-button{width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s;flex-shrink:0}.send-button:hover:not(:disabled){transform:scale(1.05);box-shadow:0 4px 12px #667eea4d}.send-button:active:not(:disabled){transform:scale(.95)}.send-button:disabled{opacity:.5;cursor:not-allowed}.send-button svg{width:20px;height:20px}.sending-spinner{width:20px;height:20px;border:2px solid rgba(255,255,255,.3);border-radius:50%;border-top-color:#fff;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.input-hint{margin:8px 0 0;font-size:11px;color:#94a3b8;text-align:center}.chat-messages-container::-webkit-scrollbar{width:6px}.chat-messages-container::-webkit-scrollbar-track{background:#f1f1f1;border-radius:3px}.chat-messages-container::-webkit-scrollbar-thumb{background:#c1c1c1;border-radius:3px}.chat-messages-container::-webkit-scrollbar-thumb:hover{background:#a8a8a8}.chat-header{position:relative;padding:16px;display:flex;align-items:center;justify-content:center}.header-left,.header-right{position:absolute;top:50%;transform:translateY(-50%)}.header-left{left:16px}.header-right{right:16px}.header-center{text-align:center}.menu-btn{background:transparent;border:none;color:#fff;font-size:20px;cursor:pointer}.header-menu{position:absolute;top:28px;left:0;background:#fff;color:#334155;border-radius:8px;box-shadow:0 8px 20px #00000026;overflow:hidden;z-index:10;min-width:170px}.header-menu button{padding:10px 14px;background:none;border:none;width:100%;text-align:left;cursor:pointer;font-size:13px;white-space:nowrap}.header-menu button:hover{background:#f1f5f9}.close-btn{background:transparent;border:none;color:#fff;font-size:26px;cursor:pointer;line-height:1}